iPad resize UIView when keyboard is shown - ios

Question

I am running a phonegap application on iOS7 and I need to resize the UIView when the keyboard opens and when the orientation of the device changes.
I have some of the resize working but I am stuck when the orientation of the device is LandscapeRight, the first time the keyboard opens it slides up then the second time it slides it up even more.
I have search similar answers on stackoverflow and none have solved what I am looking for. So, please don't just copy and paste a solution from else where, thanks.
MainViewController.m
int screenWidth;
int screenHeight;
float keyboard_offset = 80.0;
- (void)viewWillAppear:(BOOL)animated
{
if([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidHide:) name:UIKeyboardWillHideNotification object:nil];
CGRect viewBounds = [self.webView bounds];
viewBounds.origin.y = 20;
viewBounds.size.height = viewBounds.size.height - 20;
self.webView.frame = viewBounds;
self.webView.backgroundColor = [UIColor blackColor];
self.webView.opaque=NO;
screenWidth = self.view.frame.size.width;
screenHeight = self.view.frame.size.height;
}
[super viewWillAppear:animated];
}
- (void)orientationChange:(NSNotification *)note
{
UIDevice * device = note.object;
switch(device.orientation)
{
case UIDeviceOrientationLandscapeLeft:
[self.view setFrame: CGRectMake(-keyboard_offset, 0, screenWidth + keyboard_offset, screenHeight)];
break;
case UIDeviceOrientationLandscapeRight:
[self.view setFrame: CGRectMake(keyboard_offset, 0, screenWidth + keyboard_offset, screenHeight)];
break;
case UIDeviceOrientationPortrait:
case UIDeviceOrientationPortraitUpsideDown:
[self.view setFrame: CGRectMake(0, 0, screenWidth, screenHeight)];
break;
default:
break;
};
}
- (void)keyboardDidShow:(NSNotification *) notification
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(orientationChange:)
name:UIDeviceOrientationDidChangeNotification
object:[UIDevice currentDevice]];
if([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeLeft)
{
[self.view setFrame: CGRectMake(-keyboard_offset, 0, screenWidth + keyboard_offset, screenHeight)];
}
else if([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight)
{
[self.view setFrame: CGRectMake(keyboard_offset, 0, screenWidth + keyboard_offset, screenHeight)];
}
else
{
[self.view setFrame: CGRectMake(0, 0, screenWidth, screenHeight)];
}
}
- (void)keyboardDidHide:(NSNotification *) notification
{
[self.view setFrame: CGRectMake(0, 0, screenWidth, screenHeight)];
}
AppDelegate.m
- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{
/*
Orientation change for iOS7
*/
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
{
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(orientationChanged:)
name:UIDeviceOrientationDidChangeNotification
object:[UIDevice currentDevice]];
self.window.clipsToBounds = YES;
[[UIApplication sharedApplication] setStatusBarStyle: UIStatusBarStyleBlackOpaque];
}
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}
/**
* Change the status bar color on orientation change.
*/
- (void) orientationChanged:(NSNotification *)note
{
UIDevice * device = note.object;
switch(device.orientation)
{
case UIDeviceOrientationLandscapeLeft:
self.window.frame = CGRectMake(-20, 0, screenWidth, screenHeight);
self.window.bounds = CGRectMake(-20, 0, screenWidth, screenHeight);
break;
case UIDeviceOrientationLandscapeRight:
self.window.frame = CGRectMake(20, 0, screenWidth, screenHeight);
self.window.bounds = CGRectMake(20, 0, screenWidth, screenHeight);
break;
case UIDeviceOrientationPortrait:
self.window.frame = CGRectMake(0, 20, screenWidth, screenHeight);
self.window.bounds = CGRectMake(0, 20, screenWidth, screenHeight);
break;
case UIDeviceOrientationPortraitUpsideDown:
self.window.frame = CGRectMake(0, -20, screenWidth, screenHeight);
self.window.bounds = CGRectMake(0, -20, screenWidth, screenHeight);
break;
default:
break;
};
}
CDVViewController.m
/*
Change the status bar color to the old style
*/
-(UIStatusBarStyle)preferredStatusBarStyle {
return UIStatusBarStyleLightContent;
}
- (void)viewDidLoad
{
[super viewDidLoad];
/*
Only perform these actions for iOS 7 or above
*/
if([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
[self setNeedsStatusBarAppearanceUpdate];
}
}